baber/WOPTO huggingface dataset:
Patent GB-727313-A (GB)
Title: Improved method of bonding
Inventor: PENN WILLIAM SAMUEL
IPC: C08J5/12
Filed: 1950-06-09
Abstract: Rubber is bonded to a transparent polymeric material having active hydrogen containing groups by applying a polyisocyanate, a polyisothiocyanate or a mixed isocyanate-isothiocyanate between the two materials before the rubber is vulcanized and then applying heat and pressure to vulcanize the rubber and effect the bond.  The isocyanate compound may be triphenylmethane tri-isocyanate, 1, 6 hexane diisocyanate, 1, chloro phenylene 2, 4 diisocyanate or 1, 5 naphthalene diisocyanate.  The polymeric material may be cellulose acetate, cellulose acetobutyrate, ethyl cellulose or polyvinyl alcohol.  Preferably the rubber is first bonded to a polymeric material which may be plasticized by dimethyl phthalate by the process of the invention and then adhesion made to the main polymeric material by a cementing or a heat welding process.  In an example a suspension in petrol is made from smoked sheet rubber, mercaptobenzthiazole, zinc oxide, stearic acid, sulphur, carbon black and a polyisocyanate and the suspension applied between rubber and the edge of a layer of cellulose acetate sheet.  The suspension is allowed to dry, cold moulded between polished plates to avoid deforming the cellulose acetate sheets, and finally cured in a heated press.  Reference has been directed by the Comptroller to Specifications 578,019 and 604,834.
Patent GB-1529151-A (GB)
Title: Electroless copper plating
IPC: C23C18/40
Filed: 1977-04-05
Abstract: 1529151 Maintaining the concentration in an electroless Cu plating bath KOLLMORGEN TECHNOLOGY CORP 5 April 1977 [8 April 1976 28 May 1976] 14464/77 Heading C7F Maintaining the copper ion concentration in an electroless plating bath comprising an aqueous alkaline medium, a copper ion complexing agent and a copper ion reducing agent by either interrupting the copper deposition or withdrawing a portion of the plating bath and contacting the bath or portion thereof with a copper containing substance. The salt-forming anion content is substantially less than one equivalent weight per equivalent weight of copper therein and the copper contents of said substance is capable of forming a copper complex with said copper ion complexing agent to replenish the copper content of the bath or portion thereof and the copper deposition in the enriched bath is either continued or the enriched portion returned to the bath.
Patent GB-1378219-A (GB)
Title: Method and apparatus for producing pneumatic vehicles tyres
IPC: B29D30/06
Filed: 1972-03-29
Abstract: 1378219 Moulding tyres CONTINENTAL GUMMI-WERKE AG 29 March 1972 [1 April 1971] 14612/72 Heading B5A A pneumatic tyre is moulded in stages, in each of which a different part of the tyre is produced which may be of a different material, and for this purpose are used several sets of moulds 1, 2, Figs. 1-4, with an associated core 3 providing between them mould cavities of different shapes. The core is, after a moulding stage in one mould, Fig. 1, during which moulded bead strips 7 are retained by the core, placed in a second mould, Fig. 2, for the moulding of the side walls 8, after which the core with both moulded parts retained thereon are placed in the mould of Fig. 3, for the moulding of a belt strip 9 after which the core and moulded parts are placed in the mould of Fig. 4, for the moulding of a tread strip 10. In a modification, the first three stages are carried out using the same mould with differently shaped cores, after which the third core with the moulded parts attached is placed in a different mould for the moulding of the tyre tread.
Patent GB-874652-A (GB)
Title: Drawing process for polyethylene terephthalate filaments
Inventor: MACLEOD RODERICK BRUCE
IPC: D01F6/62
Filed: 1957-05-08
Abstract: High-tenacity multi-filament tows of polymethylene terephthalates, of at least 1,000 denier, are made by subjecting filamentary material comprising such tows to the following series of operations in a continuous sequence.  (a) The filamentary material is led from a melt-spinning machine comprising a pressure feed, a melting zone, a metering pump and spinneret pack, as a flat ribbon on to a series of feed rolls and is heated to 80 DEG -110 DEG C. while travelling at not less than 500 ft./min.; (b) The tow is led on to a second series of rolls having a surface speed at least 4, but less than 6, times that of the feed rolls and is heated to 80 DEG -110 DEG C.; (c) The tow is led through a heating zone and is heated to 150 DEG -180 DEG C.; (d) The tow is led on to a third series of rolls having a surface speed 6,0-6,4 times that of the feed rolls; (e) The tow passes, under tension such that no further elongation takes place, to a collecting means.  The tow may be heated in stages (a) and (b) by using rolls which are heated, e.g. by a fluid heat-transfer medium or electrically. Slippage of the tow around the rolls may be prevented by using rolls of highly polished chromium-plated steel, or by having sufficient arc and length of contact of the tow around the rolls so that slippage cannot occur, or by passing the tow several times around a skewed idler roller and an adjacent driven roller, or a loaded cot roller may press against the filaments passing around the first feed roll.  These methods may be used singly or in combination. As the heating zone of stage (c) may be used a radiant heater, a heated fluid bath, or a steam-heated plate which may have a matt-finished chromium plated surface.  Collecting means may comprise a split drum traverse as in Specification 874,651.  As shown, a flat ribbon of spun yarn 1 is led successively around the series of electrically heated rolls (2) and (3), corresponding to stages (a) and (b), over hot plate 4 (stage (c)), around a series of rolls (5) (stage (d)), and then passes to a traverse roll and wind up unit (not shown).  Drawing takes place between 2 and 3 and between 3 and 5. Tows so made have a strength greater than 6 gms. per denier, e.g. a tow of 3,140 denier may have a tenacity of 7,0 gms. per denier and an elongation of 10%.
Patent GB-528979-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J21/36
Filed: 1939-05-16
Abstract: 528,979. Cathode-ray tubes. PYE, Ltd., and LIEBMANN, G. May, 16, 1939, No. 14654. [Class 39 (i)] The control electrode of a cathode-ray tube comprises a plate one surface of which is flush with the emission surface of the cathode and formed with an aperture larger than the electrode aperture, over which is secured a thin plate 7 with an aperture of the requisite size. The cathode 1 may be secured in an aperture in a ceramic disc 4 by means of a strap 6 of metal of low heat conduction, and the plate forming the control electrode may be the bottom of a cup-shaped member 8 to which is secured the thin disc 12 ; the thickness of the cup 8 may be 0.3 mm. and of the disc 12, 0.1 mm. The cathode 1 is formed of a nickel tube with an internal heater, and to prevent vaporized nickel from depositing in the ceramic disc 4, shields 23 are provided. To reduce conduction between the cathode 1 and disc 4 the aperture in the disc may be square, so that there is only line contact between it and the cathode. The cup 8 may be closed by a disc 17. Specification 503,074 is referred to.
Patent GB-735545-A (GB)
Title: Alpha-(halomethyl) nitrobenzyl nitrates
IPC: C07C205/42
Filed: 1953-05-27
Abstract: The invention comprises a -(halomethyl)-nitrobenzyl nitrates having additionally one or two halogen, lower alkyl, or lower alkoxy substituents, obtainable by nitrating an a -halomethyl benzyl alcohol having the additional substituents.  The nitrating agent should contain less than 10 per cent of water, e.g. nitric or sulphuric and nitric acids, and be in proportion of 2 mols. to one of the other reactant.  In examples, a -bromo- and a -chloromethyl benzyl alcohols, and a -bromomethyl m-methyl benzyl alcohol, are nitrated in batch and continuous processes, to give the para-nitro-a -halomethylbenzyl nitrates, with some ortho, from the meta methyl derivative.
Patent GB-1056663-A (GB)
Title: Data conversion systems
IPC: G05B19/33
Filed: 1964-04-09
Abstract: 1,056,663. Programmed control of machine tools. GENERAL ELECTRIC CO. April 9, 1964 [April 11, 1963], No.14812/64. Heading G3N. A linear positioning system responsive to numerically coded data, as disclosed in Specification 1, 051, 640 is modified for use for rotary positioning by selectively storing the binary coded decimal digits, representing a particular rotary position, in buffer stores from which they are transferred into coarse and fine command phase counters. The medium command phase counter is set directly from the buffer stores. For rotary positioning zero offset is not employed. In order that a rotary positioning operation is effected within the same time scale as a linear positioning operation the counting pulse frequency applied to the rotary positioning phase counters is reduced to 90 kilocycles from 250 kilocycles by a counter connected as a frequency divider.
Patent GB-885773-A (GB)
Title: Improved roll bending machines for curving plate members
Inventor: MILLER DONALD
IPC: B21D5/14
Filed: 1957-05-10
Abstract: 885,773. Curving. WHITELEY-READ ENGINEERS Ltd. April 30, 1958 [May 10, 1957; Sept. 17, 1957], Nos. 14858/57 and 29187/57. Class 83 (4). A roller-type plate bending machine comprising at least one pressure roll and two guide rolls, the plate passing between the pressure roll and the guide rolls, has an abutment for engagement with an edge of a plate being curved to conical form and mounting means for the pressure roll so that force applied to the abutment by an edge of a plate being curved causes the roll to apply more pressure to the plate in the region of the said edge than in the region of the other edge. A plate 1 to be formed into conical form is fed between an adjustable pressure roll 3 and two guide rolls 4, the shorter edge 1c bears against, and is thus slowed by, an abutment 7 depending from a collar 6 on the roll 3. The collar 6 has extensions 9 connected by a peg 12, passing through selected holes 10 to a bracket 8 upstanding from a beam 15 supporting at its other end a bracket 14 in which and the bracket 8 the roll 3 is mounted. The beam 15 is pivoted at 16 to vertically adjustable screw 17. Pressure of the plate edge against the abutment 7 causes the roller 3 and beam 15 to tilt about the pivot 16 so that roll pressure on that edge of the plate 1 is increased. The abutment 7 may not be adjustable along the roll 3 in which case the screw 17 may be displaceable to act at off centre positions of the beam 15 and balancing fluidpressure actuators may be connected at each end of the beam. The screw 17 may be replaced by mechanical, pneumatic, hydraulic or electrical means. In a further embodiment, Fig. 6, guide rolls 4 driven from a motor 49 are carried in pillars 30. The pressure roll 3 is mounted in bearings in members 69, 31 carried by a beam 44 connected to a second beam 39 either by a central pivot 67 or by pivoted links 41, 45, the link 45 being lockable by a pin through a hole 48. The beam 39 is connected by pivoted pressureapplying hydraulic cylinders 57 to webs 36 on the pillars 30. The collar 6 carrying an abutment 60 is adjustable along the roll 3 being locked in position by a pin 62 in a slot 61 engaging a saw-tooth 59 on the beam 44. Pressure by the edge of the plate being bent against the abutment 60 causes the beam 44 and roll 3 to tilt. One end 63, Fig. 9, of the roll 3 is supported in a bearing 64 eccentric in a bore in the member 31 and locked thereto by a half-cylindrical pin 32. The member 31 may be swung away from the end 63 of the roll 3 to allow the bent plate to be removed, the roll 3 being supported by a bearing 55 in the member 69 at its other end and a screw-down head 52 engaging an extension 53 of the roll. The abutment may be connected to the pressure roll by mechanical links or by hydraulic or electrical means.
Patent GB-572175-A (GB)
Title: An improved cycle stand and means for the construction thereof
IPC: B62H3/00
Filed: 1943-09-10
Abstract: 572,175. Cycle stands. DOMINY, R. A. Sept. 10, 1943, No. 14876. [Class 136 (i)] A cycle stand comprises a number of concrete &c. blocks constructed in two sizes, one being higher than the other, each with a wheelholding depression in its inclined upper surface, the sides of the blocks being vertical to enable the blocks to be laid close together to provide alternate high and low positions for the insertion of the front wheels, so that the handlebars of adjacent cycles overlap. The short blocks A and tall blocks B have sloping tops C each with a wheel-holding depression D, and two tall blocks are placed together with the inclined upper faces sloping in opposite directions, and alternate with two short blocks similarly arranged to form a row upon which cycles can be parked from either side.
Patent GB-998318-A (GB)
Title: Process for a continuous separation of gas es by adsorption
IPC: B01D53/12
Filed: 1962-04-17
Abstract: 998,318. Adsorptive gas separation. KOGYOKAIHATSU KENKYUSHO. April 17, 1962 [June 23, 1961], No. 14923/62. Heading B1L. In a process for. separating gases by means of a solid adsorbent which passes in sequence through an adsorbing zone 2, a concentrating zone 4 and a desorbing zone comprising a heating zone 6 followed by a stripping zone 9, said concentrating and said stripping zones are in the form of moving beds and the heating zone is in the form of a fluidized bed. In the preferred and illustrated process, to which the above numerals relate, the adsorption zone 2 is also fluidized and may contain cooling pipes, and both this zone and the heating zone are in the form of multistage beds. Feed gas (e.g. thermally cracked gas) is introduced at 3 and unadsorbed gases (e.g. H 2 , N 2 , CO, CH 4  and CO 2 ) are vented at 1. The adsorbent (e.g. active carbon) containing adsorbed gas (e.g. C 2 H 4 ) passes into bed 4 and is there contacted with a part of the product gas entering from line 18, whereby gases other than the gas intended to be adsorbed are displaced whilst the adsorbed gas is concentrated. The adsorbent then passes into zone 6 wherein a fluidizing gas is circulated by pump 8. A heater may be placed in the zone or in the circulation conduit. Finally the adsorbent enters stripping zone 9 where adsorbed gas is removed, e.g. by steam entering at 10, and the mixed gases are removed and passed to separator 12, which may be a condenser. Product gas is removed at 13 whilst part of the adsorbed gas is passed, as described, to concentrating zone 4. The adsorbent is returned to the adsorption zone by means of gas lift 15. Where the gas flow system of the stripping zone is integrated and in series with the gas flows system for the fluidizing gas in the heating zone to form a recirculatory system, the desorbed gas mixture may be withdrawn from a suitable point in the recirculatory system.
Patent GB-899205-A (GB)
Title: The purification and polymerisation of vinylene carbonate
Inventor: NESBITT BRENDA FRANCES
IPC: C08F18/08
Filed: 1960-04-28
Abstract: Polyvinylene carbonate is prepared by a process characterized in that vinylene carbonate is purified by fractional crystallization until its freezing point is not lower than 21,0 DEG C. and is then polymerized in solution in tertiary butanol in the presence of a free radical catalyst.  The preferred catalyst is ethyl azodiisobutyrate. The products may be used in the manufacture of shaped articles such as films.
Patent GB-1098118-A (GB)
Title: Improvements in or relating to sights for weapons
Inventor: CHOATE PAUL VINCENT
IPC: F41G1/00
Filed: 1966-04-04
Abstract: 1,098,118. Sights for weapons. NORRISINDUSTRIES Inc. April 4, 1966, No. 14977/66. Heading F3C. A sight for a weapon comprises a mount 14 and a sighting unit housed within the mount and including a vertically movable sight member 22 to which one end of a thermally responsive means 24 is connected. The other end of the thermally responsive means 24 is connected to the mount and is made of such a material, e.g. bi-metallic strip, that in the case of a back sight, the sighting member is lowered in the mount for a decrease in temperature and raised for an increase in temperature. The sight is for a weapon firing rocket having solid fuel propellent, the efficiency of the propellant depending upon its initial firing temperature. Hence as the propellant temperature increases the trajectory of the associated projectile becomes lower, the sight compensating for this energy variation (Fig. 1, not shown). The thermally responsive means may comprise a helix formed from helically wound bi-metallic strip, a spiral bi-metallic strip (Fig. 6, not shown) on a U-shaped bi-metallic strip one end of which is connected to the mount and the other end carrying a forked member, a pin, joining the free end of the forked member, working in a diagonal slot in the sight member (Fig. 7, not shown). The sight member 22 is provided with a peep aperture 23 viewed through windows 21 in the mount. The thermally responsive means 24 is a free fit within a sleeve 26 of heat reflecting material such as aluminium.
Patent GB-588612-A (GB)
Title: Improvements in or relating to reciprocating ram pumps
IPC: F04B53/10
Filed: 1944-08-08
Abstract: 588,612. Reciprocating pumps. GRAVESON, N. A. Aug. 8, 1944, No. 15038. [Glass 102 (i)] The suction valve 12 of a reciprocating pump is a mushroom valve of light construction and is coaxially aligned with the ram 10. The valve seat 15 is held in position by a ring nut 19 and the valve is loaded by a spring 24 surrounded by a sleeve 22 that abuts a stop 26, containing resilient material, to limit the opening of the valve. The suction pipe 29 is bent and attached to a sleeve 32 secured to the pump body to allow access to the valve. The pump has three cylinders.
Patent GB-1212203-A (GB)
Title: Electrical socket assemblies
Inventor: DOWSETT REGINALD WILLIAM
IPC: H01R13/44
Filed: 1967-04-03
Abstract: 1,212,203. Two part couplings. M.K. ELECTRIC Ltd. 1 April, 1968 [3 April, 1967], No. 15073/67. Heading H2E. In a socket connector comprising an insulating front plate 12 having apertures such as 13 therein for the reception of line, neutral and earth pins of a mating plug connector, and further apertures 14 through which pass screws 16 to attach the front plate 12 to a socket box 17, the apertures 14 are lined by hollow conductive rivets 15 which are connected by a C-shaped conductive strip 18, an extension thereof 28, and a rivet 26 to the earth contact 24 of the connector. An earth termmal (not shown) of the kind described and claimed in Specification 12100/67 is formed integral with strip 18, and line and neutral contact-terminal arrangements (not shown) of the kind described and claimed.. in Specification 1,212,201 are provided. A shutter 30 is spring-biased to a position covering the line, and neutral conacts, being movable to the open position by the, action of an earth pin on the tapered surface 29 of a part of the shutter covering the earth contact.
Patent GB-781021-A (GB)
Title: Improvements in and relating to textile bobbin strippers
IPC: B65H73/00
Filed: 1955-05-25
Abstract: 781,021. Stripping waste from bobbins. TERRELL MACHINE CO. May 25, 1955 [June 22, 1954], No. 15111/55. Class 120(3) [Also in Group XXX] A machine for stripping waste from roving bobbins has jaws capable of extending over the roving-containing length of the bobbins, the jaws being provided with rigid ribs for seizing the waste and holding it as the bobbins are pushed from between the jaws. Bobbins B.to be stripped are placed on an inclined feed pan 70 and pass on to a shutter plate 71, Fig. 14, where .stops 72 restrict the number of bobbins on the plate to the number of stripping heads available. An adjustable arm 70<SP>1</SP> is located to insure proper forward disposition of the enlarged bases of the bobbins B. The shutter plate 71 is mounted between rollers 74 to permit withdrawal so as to feed the bobbins B into shoots 69 which guide them between pairs of stripping jaws 29, Fig. 2. Whilst the jaws 29 are open to receive the bobbins B, their ends are shrouded by a guard plate 90 that is moved to the left of the position shown in Fig. 2 during the feeding of the bobbins to the jaws. When the jaws 29 have closed upon the bobbins B and the guard plate 90 has returned to the positions shown, plungers 57 push the bobbins from between the jaws 29, the waste being held by ribs 52 formed on jaw liners 50, Fig. 6, until removed by projecting elements at the rear of the plungers 57. Specification 710,908 is referred to.
Patent GB-729807-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/32
Filed: 1953-06-01
Abstract: 729,807. Suction cleaners. HOOVER, Ltd. June 1, 1953 [June 2, 1952 ; June 2, 1952], No. 15242/53. Class 8 (1). A horizontal canister type suction cleaner has wheels 21 Fig. 2 at one end only of the casing 10 and a retractable handle 30 which in the retracted position lies alongside or within the casing and when extended projects beyond the end 12 of the casing remote from the wheels 21 and enables the cleaner to be held by it in an inclined position and moved about on the wheels. Retraction is effected by pivoting through 180 degrees about end portions 35 and the handle is latched by engagement of a portion 34 in a spring clip 39 ; a second clip 38 serving to latch the other end 32 of the handle when in the retracted position. The end 13 of the cleaner casing 10 lies tangentially to the wheels 21 so as to allow the cleaner to assume an upright storage position. In a modification the handle 64 Fig. 5 which has an offset portion 65 serving as a carrying handle, is pivoted about a pin 69 engaging one end of handle slots 68 and on releasing a latch lever 81 by pressing a button 92 and, rotating through 180 degrees and then pressing, the pin 69 engages the other end of slots 68 where it is locked by engagement with an indentation of a leaf spring 73. A lug 60 on the exhaust end cap 47 lies tangentially with the wheels 61. In a further modification the handle 135 Fig. 6 having a hand grip 136 is slidably mounted in a housing 130 on top of the cleaner casing 110 and carries a cleat 170 co-operating with a stationary cleat 165 for accommodating a coil of cable 169, thus enabling the latter to be released without the need for unwinding. Latches 142, 152 secure the handle 135 in the retracted and extended positions respectively.
Patent GB-919892-A (GB)
Title: Improvements in or relating to electricity maximum demand indicators
Inventor: DEACON LIONEL OAKLEY
IPC: G01R11/60
Filed: 1960-05-02
Abstract: 919,892. Supply meters. CHAMBERLAIN & HOOKHAM Ltd. April 21, 1961 [May 2, 1960], No. 15297/60. Class 37. [Also in Group XIX] In an electricity maximum demand indicator a driving member coupling an integrating meter to an indicating pointer has a " resilient means " intermittently and momentarily connected to it, the connection being accompanied by a release of energy from the resilient means which resets the driving member. Energy is provided to the resilient means by a constant speed electric motor and released at certain predetermined intervals by means of a solenoid and switch device operated by the motor. The pointer 10 is driven by a member 11 from an integrating meter (not shown) through a train of gears 12 and a friction clutch 13. A synchronous motor 15 supplies energy to a spiral spring 16 through gearing 17, the other end of the spring being connected by gears 18 and 19 to the driving member 11. The motor also operates by means of gearing 22 a cam 23 which controls a switch 21 to de-energize a solenoid 20 at fixed time intervals (say every 30 minutes). The solenoid when de-energized releases the arm 24 which bears on a pair of stops 25, thus allowing the wheel 18 to rotate through approximately 180 degrees until another pair of stops engages a lever 24. During its rotation gear 18 drives back the driving member 11 by means of gear 19, overcoming the resistance of the friction clutch, but when at rest the portion 27 coincides with the gear 19 so that no restraint is imposed on the drive. In the event of a power failure the driving member will also be returned to zero. Specification 919,893 is referred to.